PE pipeline sealing and film poking device with telescopic puncture function

Abstract

The utility model discloses a PE pipeline sealing membrane poking device with a telescopic puncture function, which comprises a membrane poking air cylinder and a membrane poking puncture mechanism, the membrane poking puncture mechanism comprises a hollow air guide fixing rod, an exhaust slideway, a telescopic spring, a hollow air guide puncture needle and a membrane poking head, the tail end of the hollow air guide fixing rod is connected with the membrane poking air cylinder, and the tail end of the hollow air guide fixing rod is connected with the membrane poking air cylinder. The front end of the hollow air guide fixing rod is fixedly connected with the hollow air guide puncture needle, the front end of the hollow air guide fixing rod is sleeved with the membrane poking head, the telescopic spring is arranged between the hollow air guide fixing rod and the membrane poking head, a moving channel is formed in the center of the membrane poking head, and the hollow air guide puncture needle is arranged in the moving channel.

Description

Technical Field

[0001] The utility model relates to the technical field of PE pipeline production and packaging, in particular to a PE pipeline sealing and film-piercing device with a telescopic puncture function. Background Art

[0002] During the automatic production and packaging process, large-diameter PE pipes need to be wrapped with a layer of film and sealed at their ports to prevent dust and flying insects from entering the pipe during the subsequent transportation and storage process, making the pipe unclean and affecting the subsequent welding and installation of the pipe. After the automatic wrapping and sealing of the port is completed, in order to ensure the beauty of the port, the wrapped and sealed sealing film needs to be inserted into the pipe. Since the pipe port wrapping is carried out online after the pipe is extruded, produced and cut, the pipe is still at a certain temperature and there is a large amount of high-temperature gas inside. During the plugging process, a small hole needs to be poked in the wrapped and sealed sealing film and a part of the internal gas needs to be discharged in time to avoid the entire sealing film being broken due to forced plugging due to the internal inflation of the pipe, thereby making the subsequent dust and insect prevention functions invalid. In addition, the small opening of the plug can ensure that dust and flying insects do not enter, so that the pipe will not be broken due to thermal expansion of the gas during the subsequent high-temperature environment stacking process. At the same time, in order to be compatible with the plugging of sealing films of large-diameter PE pipes of different specifications, the plugging mechanism needs to have a certain telescopic recovery function to avoid the adjustment of the mechanism position when the specification is switched, reduce the startup time and improve the stability of the device. Utility Model Content

[0003] In view of the above problems, the utility model aims to provide a PE pipe sealing and membrane puncturing device with a telescopic puncture function, which can be compatible with the membrane puncture of large-diameter PE pipes of different specifications.

[0004] The technical problem solved by the utility model can be achieved by adopting the following technical scheme: a PE pipe sealing and film-piercing device with a telescopic puncture function, comprising a film-piercing cylinder and a film-piercing mechanism, wherein the film-piercing mechanism comprises a hollow gas-guiding fixed rod, an exhaust slide, a telescopic spring, a hollow gas-guiding puncture needle and a film-piercing head, wherein the tail end of the hollow gas-guiding fixed rod is connected to the film-piercing cylinder, the front end of the hollow gas-guiding fixed rod is fixedly connected to the hollow gas-guiding puncture needle, the film-piercing head is sleeved on the front end of the hollow gas-guiding fixed rod, the telescopic spring is arranged between the hollow gas-guiding fixed rod and the film-piercing head, a movable channel is arranged at the center of the film-piercing head, and the hollow gas-guiding puncture needle is arranged in the movable channel.

[0005] The hollow gas guide fixing rod is hollow inside, and exhaust slides are arranged on both sides of the front of the hollow gas guide fixing rod. A film poking head connecting pin is fixed on the film poking head, and the film poking head connecting pin is arranged in the exhaust slide, and the film poking head connecting pin can move left and right in the exhaust slide.

[0006] The tail end of the hollow gas-conducting puncture needle is inserted into the hollow gas-conducting fixing rod and is fixedly connected to the hollow gas-conducting fixing rod through the puncture needle connecting pin.

[0007] The hollow gas-conducting puncture needle is hollow inside, and a round through hole is formed at the tail end of the hollow gas-conducting puncture needle, and a round through hole is formed at the front end of the hollow gas-conducting fixing rod. After the tail end of the hollow gas-conducting puncture needle is inserted into the hollow gas-conducting fixing rod and the round through holes of the two are aligned, the puncture needle connecting pin is inserted into the round through holes of the two, and the hollow gas-conducting puncture needle is fixed on the hollow gas-conducting fixing rod by interference fit.

[0008] Stripes are cut on the outer surface of the film-piercing head.

[0009] It also includes a lifting cylinder and a film-poking cylinder fixing frame, the film-poking cylinder is fixed on the film-poking cylinder fixing frame, the film-poking cylinder fixing frame is connected to the movable block of the lifting cylinder, and the lifting cylinder is fixed on the lifting cylinder fixing frame.

[0010] The film-piercing head of the utility model is made of polytetrafluoroethylene, which has good self-lubricating and anti-sticking properties, and its surface is cut with patterns to further reduce the contact area with the PE pipe sealing film, so as to avoid the sealing film being stuck to its surface after being inserted into the pipe and then being brought out again when withdrawing, thereby improving the stability of the film-piercing and the aesthetics of the finished product; the hollow gas-guiding puncture needle and the hollow gas-guiding fixing rod are both hollow in design, which are used to guide the gas in the large-diameter PE pipe, and the exhaust slide on the hollow gas-guiding fixing rod is used to guide the gas to be discharged, and the exhaust slide is large enough so that the gas-guiding exhaust does not need to be assisted by negative High-pressure suction can also achieve good air guide and exhaust effects, reducing the additional loss caused by adding the negative pressure function; the membrane head can move left and right on the exhaust slide of the hollow air guide fixed rod with the help of the membrane head connecting pin, and the telescopic spring provides telescopic and restoring force for the left and right movement of the membrane head, so that the membrane of the device can be adaptive within a certain range, so that it can be compatible with the membrane puncture of large-diameter PE pipes of different specifications, avoiding the adjustment of the left and right position of the overall device when switching specifications, reducing the startup time, and at the same time avoiding the instability problem caused by the left and right position of the device not being adjusted in place, thereby improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the device of the utility model;

[0012] Figure 2 This is the overall structural front view of the device of the utility model;

[0013] Figure 3 This is a bottom view of the cylinder displacement membrane puncturing mechanism of the utility model device;

[0014] Figure 4This is a disassembled diagram of the membrane puncture mechanism of the utility model device;

[0015] Figure 5 This is a detailed view of the membrane-piercing mechanism of the utility model device without the membrane-piercing head.

[0016] In the figure: 1 is a lifting cylinder fixing frame, 2 is a film-poking head, 3 is a PE pipe sealing film, 4 is a large-diameter PE pipe, 5 is a lifting cylinder, 6 is a film-poking cylinder, 7 is a film-poking cylinder fixing frame, 8 is a telescopic spring, 9 is a hollow gas-guiding fixing rod, 10 is an exhaust slide, 11 is a puncture needle connecting pin, 12 is a film-poking head connecting pin, and 13 is a hollow gas-guiding puncture needle. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0018] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0019] Combined with Figures 1 to 5 As shown, this embodiment discloses a PE pipe sealing and film-piercing device with telescopic puncture function, including a lifting cylinder fixing frame 1, a lifting cylinder 5, a film-piercing cylinder fixing frame 7, a film-piercing cylinder 6 and a film-piercing puncture mechanism. The film-piercing cylinder 2 is fixed on the film-piercing cylinder fixing frame 7, the film-piercing cylinder 2 and the film-piercing cylinder fixing frame 7 are connected by threads and fixed by two nuts for secondary locking, the film-piercing cylinder fixing frame 7 and the movable block of the lifting cylinder 5 are connected and fixed by four hexagon socket screws, and the lifting cylinder 5 is fixed on the lifting cylinder fixing frame 1 by four hexagon socket screws.

[0020] The membrane puncture mechanism includes a hollow gas-conducting fixed rod 9, a telescopic spring 8, a hollow gas-conducting puncture needle 13 and a membrane puncture head 2. The tail end of the hollow gas-conducting fixed rod 9 is connected to the membrane puncture cylinder 6, the front end of the hollow gas-conducting fixed rod 9 is fixedly connected to the hollow gas-conducting puncture needle 13, the membrane puncture head 2 is sleeved on the front end of the hollow gas-conducting fixed rod 9, the telescopic spring 8 is arranged between the hollow gas-conducting fixed rod 9 and the membrane puncture head 2, a moving channel is arranged in the center of the membrane puncture head 2, and the hollow gas-conducting puncture needle 13 is arranged in the moving channel.

[0021] The hollow gas guide fixing rod 9 is hollow inside, and exhaust slideways 10 for exhaust are arranged on both sides of the front of the hollow gas guide fixing rod 9. A film-piercing head connecting pin 12 is fixed on the film-piercing head 2, and the film-piercing head connecting pin 12 is arranged in the exhaust slideway 10. The film-piercing head connecting pin 12 can move left and right in the exhaust slideway 10. The tail end of the hollow gas guide fixing rod 9 is connected to the piston rod of the film-piercing cylinder 6 by a thread and is locked twice with a nut.

[0022] The tail end of the hollow gas-conducting puncture needle 13 is inserted into the hollow gas-conducting fixed rod 9 and fixedly connected to the hollow gas-conducting fixed rod 9 through the puncture needle connecting pin 11. The hollow gas-conducting puncture needle 13 is hollow inside, and a round through hole is opened at the tail end of the hollow gas-conducting puncture needle 13, and a round through hole is opened at the front end of the hollow gas-conducting fixed rod 9. After the tail end of the hollow gas-conducting puncture needle 13 is inserted into the hollow gas-conducting fixed rod 9 and the round through holes of the two are aligned, the puncture needle connecting pin 11 is inserted into the round through holes of the two, and the hollow gas-conducting puncture needle 13 is fixed on the hollow gas-conducting fixed rod 9 by interference fit.

[0023] The membrane head 2 is made of a polytetrafluoroethylene block by cutting, punching and grinding. Stripes are cut on the outer surface of the membrane head 2 to reduce the contact area with the pipeline sealing film and prevent the PE pipeline sealing film from adhering to its surface. A moving channel is set in the center of the membrane head 2 for moving the hollow gas-conducting puncture needle, and a round through hole is opened at the tail end of the membrane head 2. When the membrane head 2 is sleeved on the outside of the hollow gas-conducting fixed rod and the round hole at its tail end is aligned with the exhaust slide 10 of the hollow gas-conducting fixed rod, the membrane head connecting pin 12 is inserted into the round through hole of the membrane head 2 to connect the polytetrafluoroethylene membrane head 2 to the hollow gas-conducting fixed rod 9 and can move left and right with the help of the exhaust slide 10. The telescopic spring 8 is arranged between the hollow gas-conducting fixed rod and the polytetrafluoroethylene membrane head to provide a telescopic restoring force for the membrane head 2.

[0024] The specific implementation process of the utility model device in the production process is as follows: first, the entire device and its mirror device are fixed to the winding equipment at both ends of the pipe through the lifting cylinder fixing frame 1 and the hexagon socket screws, and then the device is started. The two-end winding equipment wraps the winding film around the two ends of the large-diameter PE pipe 4 and completes the sealing to form the PE pipe sealing film 3, and then the lifting cylinder 5 moves down to drive the film-piercing cylinder fixing frame 7 and the film-piercing cylinder 6 above it to move down, and at this time the hollow gas-guiding puncture needle 13 is just located at the center of the large-diameter PE pipe 4. Then the film-piercing cylinder 6 moves out to drive the hollow gas-guiding fixed rod 9 and the mechanism above it to move left, and then the film-piercing head 2 made of polytetrafluoroethylene material pierces the PE pipe sealing film 3 that has been wrapped and sealed into the interior of the large-diameter PE pipe 4. As the hollow gas-guiding fixed rod 9 continues to move to the left, the film-piercing head 2 is driven to move to the right by the reaction force of the PE pipe sealing film 3. In this process, the film-piercing head connecting pin 12 and the exhaust slide 10 provide guidance for the movement of the film-piercing head 2. As the hollow gas guide fixing rod 9 continues to move to the left and the polytetrafluoroethylene film piercing head 2 moves in the opposite direction, the hollow gas guide puncture needle 13 begins to be exposed outside the polytetrafluoroethylene film piercing head 2 and pierces a small hole in the PE pipe sealing film 3. At the same time, the high-temperature gas in the large-diameter PE pipe 4 quickly enters the hollow gas guide fixing rod 9 along the hollow gas guide puncture needle 13 and is discharged along the exhaust slide 10. At this time, the film piercing cylinder 6 has been extended to the position, and the polytetrafluoroethylene film piercing head 2 continues to poke the PE pipe sealing film 3 to the left under the restoring force of the telescopic spring 8 because the reaction force is reduced due to the gas discharge inside the PE pipe sealing film 3. Then the film-piercing cylinder 6 starts to return to its original position and drives the hollow gas-guiding fixed rod 9 to move to the right. The hollow gas-guiding puncture needle 13 and the polytetrafluoroethylene film-piercing head 2 slowly leave the PE pipe sealing film 3. As the hollow gas-guiding fixed rod 9 continues to move to the right, the polytetrafluoroethylene film-piercing head 2 moves to the left under the restoring force of the telescopic spring 8 and finally hides the hollow gas-guiding puncture needle 13 again in the film-piercing head 2. Then the film-piercing cylinder 6 returns to its original position, and the lifting cylinder 5 moves up and returns to its original position. During the whole process, the mirror device on the other side performs the same action in a mirrored manner to poke the wrapped and sealed PE pipe sealing film into the port on the other side of the large-diameter PE pipe. At this time, the PE pipe sealing films wrapped and sealed at both ends of the large-diameter PE pipe 4 have been completed and grabbed by the next automatic grabbing mechanism. Then the device waits for the port of the next large-diameter PE pipe to be wrapped and sealed. The device is complete.

[0025] The film-piercing head 2 of the utility model is made of polytetrafluoroethylene, which has good self-lubricating and anti-sticking properties, and its surface is cut with patterns to further reduce the contact area with the PE pipe sealing film, which can avoid the sealing film sticking to its surface after the sealing film is inserted into the pipe and the PE pipe sealing film is taken out again when it is withdrawn, thereby improving the stability of the film-piercing and the aesthetics of the finished product; the hollow gas-guiding puncture needle 13 and the hollow gas-guiding fixed rod 9 are both hollow in design, which are used to guide the gas in the large-diameter PE pipe, and the exhaust slide 10 on the hollow gas-guiding fixed rod 9 is used to guide the gas discharge, and the exhaust slide 10 is large enough so that the gas-guiding exhaust does not need Good air guide and exhaust effects can also be achieved with the help of negative pressure suction, reducing the additional loss caused by adding the negative pressure function; the membrane head 2 can move left and right on the exhaust slide of the hollow air guide fixing rod with the help of the membrane head connecting pin, and the telescopic spring 8 provides telescopic and restoring force for the left and right movement of the membrane head, so that the membrane of the device can be adaptive within a certain range, so that it can be compatible with the membrane puncture of large-diameter PE pipes of different specifications, avoiding the adjustment of the left and right position of the overall device when switching specifications, reducing the startup time, and at the same time avoiding the instability problem caused by the left and right position of the device not being adjusted into place, thereby improving the stability of the device.

[0026] The above description is only a preferred implementation mode of the utility model, and does not impose any form of limitation on the utility model. Any simple modification, equivalent change or modification made to the above embodiments based on the technical principle of the utility model still falls within the scope of the technical solution of the utility model.

Claims

1. A PE pipe sealing and film-piercing device with a telescopic puncturing function, comprising a film-piercing cylinder (6) and a film-piercing mechanism, characterized in that: The membrane puncturing mechanism comprises a hollow gas-conducting fixed rod (9), a telescopic spring (8), a hollow gas-conducting puncture needle (13) and a membrane puncturing head (2); the tail end of the hollow gas-conducting fixed rod (9) is connected to the membrane puncturing cylinder (6); the front end of the hollow gas-conducting fixed rod (9) is fixedly connected to the hollow gas-conducting puncture needle (13); the membrane puncturing head (2) is sleeved on the front end of the hollow gas-conducting fixed rod (9); the telescopic spring (8) is arranged between the hollow gas-conducting fixed rod (9) and the membrane puncturing head (2); a moving channel is arranged at the center of the membrane puncturing head (2); and the hollow gas-conducting puncture needle (13) is arranged in the moving channel.

2. A PE pipe sealing and film-piercing device with telescopic puncture function according to claim 1, characterized in that: The hollow gas guide fixing rod (9) is hollow inside, and exhaust slideways (10) are arranged on both sides of the front of the hollow gas guide fixing rod (9). A film poking head connecting pin (12) is fixed on the film poking head (2), and the film poking head connecting pin (12) is arranged in the exhaust slideway (10). The film poking head connecting pin (12) can move left and right in the exhaust slideway (10).

3. A PE pipe sealing and film-piercing device with telescopic puncture function according to claim 1, characterized in that: The tail end of the hollow gas-conducting puncture needle (13) is inserted into the hollow gas-conducting fixing rod (9) and is fixedly connected to the hollow gas-conducting fixing rod (9) via the puncture needle connecting pin (11).

4. A PE pipe sealing and film-piercing device with telescopic puncture function according to claim 3, characterized in that: The hollow gas-conducting puncture needle (13) is hollow inside, and a circular through hole is formed at the rear end of the hollow gas-conducting puncture needle (13). A circular through hole is formed at the front end of the hollow gas-conducting fixing rod (9). After the rear end of the hollow gas-conducting puncture needle (13) is inserted into the hollow gas-conducting fixing rod (9) and the circular through holes of the two are aligned, the puncture needle connecting pin (11) is inserted into the circular through holes of the two, and the hollow gas-conducting puncture needle 13 is fixed to the hollow gas-conducting fixing rod (9) by interference fit.

5. The PE pipe sealing and film-piercing device with telescopic puncture function according to claim 1 is characterized in that: The outer surface of the membrane-piercing head (2) is cut with stripes.

6. The PE pipe sealing and film-piercing device with telescopic puncture function according to claim 1 is characterized in that: It also comprises a lifting cylinder (5) and a film-penetrating cylinder fixing frame (7), wherein the film-penetrating cylinder (6) is fixed on the film-penetrating cylinder fixing frame (7), and the film-penetrating cylinder fixing frame (7) is connected to the movable block of the lifting cylinder (5).

7. A PE pipe sealing and film-piercing device with telescopic puncture function according to claim 6, characterized in that: The lifting cylinder (5) is fixed on the lifting cylinder fixing frame (1).

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